Shaver



March 4, 1947 H. SCHLOTTHAUER 2,416,775

SHAVER Filed Oct. 23, 1944 Patented Mar. 4, 19,47

- UNISTE A551715511535. PATENT l f fsnAvER K.

i i 1 Application Octoberv 23, 1944-;S'e'ial c.

freev endfaf plug (notf'shown)` whereby it' ma'ygbe plugged Sinto anfel'e'ctric"outlet'. switch 311s' provided for!" turning Vrthe current `on oif'roij `from"l I14 v This invention relates toshavng devices and more particularly to the so-called dry shavers and is inlthe nature of an improvement upon' the shaver shown and described` in my priorapplication for patent on VShaver,' Serial No. 292004, .5 led August 26, 1939 nowlPatent No; 2,376,197` dated May.15,'1945.`sf21 l One oftheobjectsfoflthis invention is tozprovide a novel connectionbetween the cutting blade and the' couplingmember which couplesthe blade to the motor shaft. 'As.-in'the shaver "of myf"coY pending application, 'i thev blade iis. urged' toward the face portion of the'cutting headbya resilient means, such asa coiled spring, but in the instant shaver no means `are ire'quiredcto prevent Athe spring from thrusting .the cutting. assembly from the shaft whenever the cutting-head. is removed from the housing, and one of the objects ofthis. invention is the provision of resilient 'means within the coupling member for urgingV theblade theimgto'rff .r The cutting head assemblycomprises "a housing.;v 4 carried atoneend by the" motorfhousinggas 'bythe screw'threaded connectionf shownas I'air'i Fig. 2. The housinglhas alreducedportionor; neck "5 .which :provides a 'cutting' headfsupport' Y upon which "the cutting `headifis 's'ated'-andeds f removably secured as by a' lock VLring "1 threaddly secured f upon thel cutting khead supportfand formed vwith inwardly-A extendin'gr lugs 23 whicl'rare arranged to y'im'pingef'.upon*l'outwardlyafexet tending lugse22 formedi'on the cutting head1 6. The lugs '234 on the-lock ring farespaced apartto; enable theflugs' 22f-o`f theacuttinghead, :when brought in register.` with the :spaceszbetween the. lugsr 23,to'bedtachedfrom`the cuttinghead'; support for the purpose. of removing. theA ,cutter into cuttingposition, the-couplingmember being coupled to the shaft by a simple pin and slot connection.v

also preventing excessive heating.4

. Another object is: thepr'ovision of` ashav-er which is simple in construction, eiiicient in. oper-v ation,-doesnot pull the hair or pinch the fskin,

is durable and not likely to come into -disrepain p With these and other objectsand advantages in view, this invention consists in the several novel features hereinafter-fully set forth and claimed. y Y i l Y The invention is clearly f illustrated in companying drawing in'which: f

Fig. 1 is a side elevation of a shaving device ern the acassembly for. sterilizing the bladeior:` for any other.y

purpose. .Whem however; the ylockaring; is

screwed J down tight with the lugs T2-3impingingf uponthe lugs-22 fthe cutting headisl rigidlyz'se-` curedinplace';

The motor shaft 8 extends from the motor'24 through the housing and cutting headsupport and 'carries the cutter assembly 91upon: its. upper end. *Ther housing :4V fis .formed4 with Vva chambervv I I through which*the'fshaft` extendsand irrwhich' is a centriiugalffan 1I2 thatlissecuredfuponfthe motor shaft. The' fanfI 2 may comprised d1sc-34 having a hubv:f`ast 'onthe' motor shaft and'van or blades? 36:: extending Jup 'from-the?. disc? coiled springzinterposedifbetween the fan'zdiscg34.v and cutter assembly 9 'surrounds fthe shaft 8 1 and:

urges the cutter assembly in an outwarddirection'; y,

The` chamber-1I Ia communicatesrwith: the Icuttin'g head through abore" I 3, and: the .cylindrical walt;

I4 of thefhou's'ing `4 is formed withseveralfopena;4 ings/11.5I through *whichf air and hairf clippings;v drawn inimmth'e cutting head, may-z beidis-l charged into a hair collecting chamber 46 -form'ed'i between s the Wall n I4 and" an 'aperturedaring which is removably 'securedfto the housingilas byl friction; :Behind the apertures41in th'e ring;..45i l isa 'iinc soreerrl` which preventsrthe-'hairs from;

' ing` the ring, '451-and'shaking'the'haii' out. In then bodying a simple Vform of the present invention;

Fig. 2 is an enlarged vertical central section taken along the line 2+! of Fig-1yvv i' Fig. 3 is a. perspective view of the cutting head;

Fig. 41s a perspective viewof` a certaimlock ring'which fastens the cutting head to the cutting head support; and` Fig. 5 is an endelevation ofthe cutter assembly and 5a' fragment ofthe motor shaft detached therefrom. 1 x f 1 Referring tok said drawing.: the reference character; I` 'designates a, 4motor hou'sing'.'composew'oil any zsuitab'lef material' in lwhich 4is mounted fthe operating motor."` 24 of suitable design 'and'y capacity and providedy with an extension cord,a fragment; of whichl i's.'seen atand'havin'g on'its,

and in the'fside walluo'ffthefeutting 'headare openi-f ings 'L 3 IJ-l throught which" air isi drawn i'int'o'fthe :interior "of the: shaver tby .,thexfan' and -`discharged. throughthe opningslflff; i, "i

. end wallf I '9 fof'. thefcutting' head1 is an? opening *Sof the slot in said coupling member and the latter having an axially extending bore therein in which the end of the shaft is received, means for removably securing the coupling member to the shaft, a pin secured in the coupling member and extending across the bore thereof, and a coiled spring contained in the bore and supported by said pin, said spring functioning to urge the blade against said depressed disc-like wall of the cutting head.

3. A shaving device comprising in combination,

'a power driven rotatable shaft, a blade having cutting edges, a cutting head having'an annular slotted facevportion which cooperates with the cutting edges of the blade tosever hairs, said cutting head having. also a depresseddisc-like wall, a slotted coupling member for coupling said blade to the shaft, Vsaid blade being held in the slot of the coupling member, and the latterl having an axially extendingl boretherein Ain which the end of the shaft isl received, means for removably securing the. coupling member to the shaft, a pin secured in said coupling member and extending across the bore thereof, a coiled spring in the bore of the coupling member, a block carried by one end of the spring andbearing against the pin, and a fulcrum member carried by the other end of the spring, said fulcrum member having a conical end bearing against the blade and forming a fulcrum therefor, said spring functioning to urge the blade against the depressed disc-,like wall of theV cutting head.v

4. A shaving device comprising in combination,

a cutting head having an annular slotted face portion and a depressed disc-like wall, -a cutting blade having cutting edges cooperating with said slotted face portion to cut hairs, a power driven shaft, a coupling member between said blade and shaft, said coupling member having a slotted head inv which the blade is received, pins secured in said head and extending through oversize holes v Number Name Date 2,119,284 Meyer May 31, 1938 2,280,052 Bahr Apr. 21, 1942 2,337,391 Horowitz Dec. 21, 1943 in the blade, said coupling member having also an axially bored stern extending from the head, a pin extending through said stem, a coiled spring in the bore of the stem interposed between said pin and the blade and having a fulcrum member for the blade secured upon one end of the spring, the latter functioning to urge the bladeagainst said depressed disc-like wall, and a pin and slot connection between the coupling member and shaft. y

5. In a shaving device, a motor driven shaft, a cutter assembly removably secured on one end of i said shaft, said cutter assembly including va cutvting blade, a coupling member for coupling the blade tothe shaft, said coupling member having a slot-ted head to receive' the blade, a pin land slot connection between the head and blade permitting REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS 

